61 lines
1.4 KiB
Makefile
61 lines
1.4 KiB
Makefile
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# See LICENSE for license details.
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ifndef _SIFIVE_MK_COMMON
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_SIFIVE_MK_COMMON := # defined
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.PHONY: all
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all: $(TARGET)
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include $(BSP_BASE)/libwrap/libwrap.mk
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BOARD ?= freedom-e300-hifive1
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ENV_DIR = $(BSP_BASE)/env
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PLATFORM_DIR = $(ENV_DIR)/$(BOARD)
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#TARGET_FLAVOR := -march=rv32imac -mabi=ilp32 -mcmodel=medany -msmall-data-limit=8 -x assembler-with-cpp
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TARGET_FLAVOR := -march=rv32imac -mabi=ilp32
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ASM_SRCS += $(ENV_DIR)/start.S
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ASM_SRCS += $(ENV_DIR)/entry.S
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C_SRCS += $(PLATFORM_DIR)/init.c
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LINKER_SCRIPT := $(PLATFORM_DIR)/link.lds
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INCLUDES += -I$(BSP_BASE)/include
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INCLUDES += -I$(BSP_BASE)/drivers/
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INCLUDES += -I$(ENV_DIR)
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INCLUDES += -I$(PLATFORM_DIR)
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TOOL_DIR ?= $(BSP_BASE)/../toolchain/bin
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CC := $(TOOL_DIR)/riscv64-unknown-elf-gcc ${TARGET_FLAVOR}
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AR := $(TOOL_DIR)/riscv64-unknown-elf-ar
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LDFLAGS += -T $(LINKER_SCRIPT) -nostartfiles
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LDFLAGS += -L$(ENV_DIR)
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ASM_OBJS := $(ASM_SRCS:.S=.o)
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C_OBJS := $(C_SRCS:.c=.o)
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LINK_OBJS += $(ASM_OBJS) $(C_OBJS)
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LINK_DEPS += $(LINKER_SCRIPT)
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CLEAN_OBJS += $(TARGET) $(LINK_OBJS)
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CFLAGS += -g
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$(TARGET): $(LINK_OBJS) $(LINK_DEPS)
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$(CC) $(CFLAGS) $(INCLUDES) $(LINK_OBJS) -o $@ $(LDFLAGS)
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$(ASM_OBJS): %.o: %.S $(HEADERS)
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$(CC) $(CFLAGS) $(INCLUDES) -c -o $@ $<
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$(C_OBJS): %.o: %.c $(HEADERS)
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$(CC) $(CFLAGS) $(INCLUDES) -include sys/cdefs.h -c -o $@ $<
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.PHONY: clean
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clean:
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rm -f $(CLEAN_OBJS)
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endif # _SIFIVE_MK_COMMON
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